Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Jiang, Biqiang; Lu, Xin; Gan, Xuetao; Qi, Mei; Wang, Yadong; Han, Lei; Mao, Dong; Zhang, Wending; Ren, Zhaoyu

doi:10.1364/ol.40.003994

Cited by 58 publications

(31 citation statements)

References 21 publications

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“…The emergence of layered materials provides new opportunities for sensor development. Up to now, various optical sensors using layered materials such as graphene, graphene oxide, reduced graphene oxide, and WS 2 , have been obtained, as shown in Figure . On the device level, these optical sensors with prisms, optical fibers, waveguides, optical flow control, and optical interferometer have the advantages of high‐sensitivity, good stability, compact structure, light weight, and strong distributed sensing ability, and lab‐on‐fiber ability.…”

Section: Novel Optical Devices Using 2d Layered Materialsmentioning

confidence: 99%

See 1 more Smart Citation

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

408

197

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In recent years, 2D layered materials, including graphene, topological insulators, transition metal dichalcogenides, black phosphorus, MXenes, graphitic carbon nitride, and metal‐organic frameworks, have attracted considerable interest due to their potential applications in the fields of physics, chemistry, biology, and energy. Their rise in the field of nonlinear photonics began around 2009 and has become an important research direction. Here, the synthesis techniques, nonlinear optical properties, integration strategies, and device applications of layered materials are reviewed. In terms of nonlinear optical properties, the focus is on saturable absorption and Kerr nonlinearity. On this basis, their applications in various pulsed lasers, including fiber lasers, solid‐state lasers, waveguide lasers, and related nonlinear optical phenomenon, are summarized. In addition, novel optical devices using layered materials, such as optical modulators, optical polarizers, optical switchers, and even all‐optical device, are also involved. It is believed that the development of 2D layered materials in the field of photonics will continue to deepen, thus laying a good foundation for its practical application.

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Section: Novel Optical Devices Using 2d Layered Materialsmentioning

confidence: 99%

Section: Novel Optical Devices Using 2d Layered Materialsmentioning

confidence: 99%

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

408

197

View full text Add to dashboard Cite

show abstract

“…Possibilities in sensor designs are manifold: strain, temperature, pressure, chemical, and bio-chemical sensors can be achieved, among other applications [4][5][6][7][8][9][10][11]. The latter two are usually derived from the use of an optical fiber as a refractometer [12][13][14]. Refractive index (RI) sensing can provide intrinsic information about the probed medium such as its density, the concentration in chemical compounds or the purity of a solution.…”

Section: Introductionmentioning

confidence: 99%

Multimodal plasmonic optical fiber grating aptasensor

et al. 2020

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Tilted fiber Bragg gratings (TFBGs) are now a well-established technology in the scientific literature, bringing numerous advantages, especially for biodetection. Significant sensitivity improvements are achieved by exciting plasmon waves on their metal-coated surface. Nowadays, a large part of advances in this topic relies on new strategies aimed at providing sensitivity enhancements. In this work, TFBGs are produced in both single-mode and multimode telecommunication-grade optical fibers, and their relative performances are evaluated for refractometry and biosensing purposes. TFBGs are biofunctionalized with aptamers oriented against HER2 (Human Epidermal Growth Factor Receptor-2), a relevant protein biomarker for breast cancer diagnosis. In vitro assays confirm that the sensing performances of TFBGs in multimode fiber are higher or identical to those of their counterparts in single-mode fiber, respectively, when bulk refractometry or surface biosensing is considered. These observations are confirmed by numerical simulations. TFBGs in multimode fiber bring valuable practical assets, featuring a reduced spectral bandwidth for improved multiplexing possibilities enabling the detection of several biomarkers.

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“…Optical fiber refractometers have attracted widespread attention in the past decades due to many desirable advantages such as the small size, compact structure, high flexibility, immunity to electromagnetic interference, corrosion resistance, and the capacity for in situ and multiplexed operation. Various optical fiber refractometers have been developed including tapered fiber structures [1], optical fiber surface plasmon resonance (SPR) devices [2][3], fiber Bragg gratings (FBGs) [4][5], titled fiber Bragg gratings (TFBGs) [6], long-period gratings (LPGs) [7][8], optical fiber modal interferometers (MIs) [9][10], and fiber Fabry-Perot interferometers (FPIs) [11][12][13][14][15][16]. Among them, the fiber FPIs have advantages of compact probe structure, large measurement range, linear response, low temperature cross-sensitivity, and convenient reflection mode for detection, which make them particularly attractive for RI measurement.…”

Section: Introductionmentioning

confidence: 99%

HCPCF-based in-line fiber Fabry-Perot refractometer and high sensitivity signal processing method

et al. 2017

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An in-line fiber Fabry-Perot interferometer (FPI) based on the hollow-core photonic crystal fiber (HCPCF) for refractive index (RI) measurement is proposed in this paper. The FPI is formed by splicing both ends of a short section of the HCPCF to single mode fibers (SMFs) and cleaving the SMF pigtail to a proper length. The RI response of the sensor is analyzed theoretically and demonstrated experimentally. The results show that the FPI sensor has linear response to external RI and good repeatability. The sensitivity calculated from the maximum fringe contrast is -136 dB/RIU. A new spectrum differential integration (SDI) method for signal processing is also presented in this study. In this method, the RI is obtained from the integrated intensity of the absolute difference between the interference spectrum and its smoothed spectrum. The results show that the sensitivity obtained from the integrated intensity is about -1.34× 10 5 dB/RIU. Compared with the maximum fringe contrast method, the new SDI method can provide the higher sensitivity, better linearity, improved reliability, and accuracy, and it's also convenient for automatic and fast signal processing in real-time monitoring of RI.

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Graphene-coated tilted fiber-Bragg grating for enhanced sensing in low-refractive-index region

Cited by 58 publications

References 21 publications

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Multimodal plasmonic optical fiber grating aptasensor

HCPCF-based in-line fiber Fabry-Perot refractometer and high sensitivity signal processing method

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